Ascocarps are cup-shaped fruiting bodies characteristic of fungi in the phylum Ascomycota that contain septate hyphae and can produce sac-like asci containing ascospores.

Ascocarps

- Ascospores- Sexually produced
- Conidia- Asexually produced

Spores of Ascomycota

Ascospores are sexually produced fungal spores that are formed within the taxonomic group Ascomycota.

Ascospores

Aspergillus is a genus of ascomycete molds that are important causes of allergies and infections, and are utilized in scientific research as well as in the production of fermented alcoholic beverages like Japanese sake.

Aspergillus

Neurospora crassa is an ascomycete fungus widely used in genetics research because its meiotic spores are aligned in a row inside the ascus, reflecting the sequential cell divisions and providing a direct visualization of gene segregation and assortment.

Neurospora crassa

Penicillium is a genus of ascomycete fungi known for producing the antibiotic penicillin.

Penicillium

Saccharomyces is a genus of unicellular ascomycetes, commonly referred to as yeasts, that are used in brewing beer and have haploid and diploid stages.

Saccharomyces

Coccidioides immitis is a pathogenic ascomycete fungus that is the causative agent of Valley fever, a serious lung disease.

Coccidioides immitis

Ascomycete fungi are responsible for various plant diseases, which include ergot infections, Dutch elm disease, and powdery mildews.

Ascomycete Plant Diseases

Dermatophytes are a group of pathogenic, keratin-requiring ascomycetes from the genera *Trichophyton*, *Microsporum*, and *Epidermophyton*. They are capable of causing cutaneous mycoses, including skin infections such as athlete's foot, jock itch, and ringworm.

Dermatophytes

Histoplasma capsulatum is a pathogenic, dimorphic ascomycete fungus that causes the respiratory infection histoplasmosis. It is ecologically associated with birds and bats, particularly in the Ohio and Mississippi river valleys, and conversion from mold to yeast occurs in the host's lungs.

Histoplasma capsulatum

Candida albicans is an ascomycete yeast that is the most common cause of vaginal and other yeast infections, and is a part of the normal human microbiota of the skin, intestine, genital tract, and ear.

Candida albicans

The life cycle of ascomycetes includes both asexual and sexual reproduction phases. Asexually, mycelia produce conidiophores that use mitosis to form spores, which germinate into new mycelia. Sexually, reproduction begins when one hypha produces an ascogonium and another produces an antheridium. In plasmogamy, the ascogonium and antheridium fuse. Mitosis and cell division then produce dikaryotic hyphae, which form a fruiting body known as the ascocarp. Asci develop at the tips of these hyphae. In karyogamy, the nuclei within the asci fuse to form a diploid zygote. Meiosis then produces four haploid nuclei in each ascus, followed by mitosis and cell division to yield eight haploid ascospores within the ascus. These ascospores are dispersed and germinate into new mycelia.

Ascomycete Life Cycle

Ascomycota is a phylum of fungi characterized by septate hyphae and cup-shaped fruiting bodies called ascocarps. They include edible species (mushrooms, morels, and truffles), food spoilage agents (bread molds and plant pathogens), and human pathogens, and reproduce using asexual conidia or sexual ascospores.

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While not all fungi cause illness, medically important species exist in four major fungal groups: Zygomycota, Ascomycota, Basidiomycota, and Microsporidia.

Pathogenic Fungal Groups

Septate hyphae are fungal filaments that are divided into distinct cellular compartments by internal walls, separating the nuclei along the strands.

Septate Hyphae

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Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

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Ascomycota

Zygomycota is a phylum of fungi, mostly saprophytic, characterized by coenocytic hyphae and haploid nuclei. They reproduce asexually using sporangiospores and sexually using thick-walled zygospores formed by the fusion of reproductive cells from two individuals.

Zygomycota

Basidiomycota (basidiomycetes) are a phylum of fungi characterized by club-shaped structures called basidia that produce basidiospores within fruiting bodies called basidiocarps. They play important ecological roles as decomposers, serve as food, and include mushrooms, rusts, stinkhorns, and puffballs.

Basidiomycota 

Microsporidia are unicellular fungi that function as obligate intracellular parasites, lacking mitochondria, peroxisomes, and centrioles, and are known to cause microsporidiosis.

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